Tag: chemistry
Electrophoresis: what is it?
Electrophoresis is a technique of separation particles electrically charged by differential migration under the action of an electric field. Depending on the characteristics of the molecule (size and geometry, electric…
Hydrogen cyanide: what is it?
Cyanidehydrogen is a chemical compound with the formula HCN that is found in its pure state in gaseous form, or in liquid form also called hydrocyanic acid. Naturally produced by…
Alembic: what is it?
A still is a device used for distillation, that is to say the separation by heating and then cooling substances such as alcohol, essential oils or certain pharmaceutical products. History…
Invert sugar: what is it?
the sugar invert is a mixture of equal proportions of glucose and of fructose obtained by hydrolysis from sucrose. It is obtained either by an enzyme (invertase) or by a…
Why are there sulfites in wine?
While drinking wine or cider, you may have noticed on the label of the bottle that it says “contains sulphites”. The idea of adding it to wine dates back several…
Strychnine: what is it?
Strychnine is a alkaloid indolent extremely toxic extract from the nuts from the vomit (Strychnos nux vomica). Very famous as poison, it comes in the form of odorless and colorless…